Horsethief Reservoir Campground sits at 5,000 feet elevation along Warm Lake Road, about six miles east of Cascade. The Idaho Department of Fish and Game manages this first-come, first-served facility through the Boise YMCA, with approximately 115 sites spread across five loops around the reservoir's north and northwest shores. Most loops received renovations and reopened in May 2022, featuring paved access roads and gravel parking pads.
The campground operates as a pack-in, pack-out facility with no hookups, dump stations, or garbage collection. Each site includes metal picnic tables and fire rings, with vault toilets and potable water available throughout the loops. Many sites offer direct water access for launching kayaks or fishing from shore. The reservoir allows motorized boats but enforces a no-wake policy, keeping noise levels down for trolling and paddling.
Mike E. notes there are "about 115 camp sites between the 5 loops" with "nice level camping/picnic pads at each site." Reviewers consistently mention good trout fishing and wildlife viewing opportunities, including bald eagles and waterfowl. Sites fill quickly by Saturday afternoon during summer months, so Thursday or Friday arrival works best for weekend stays.
Campers wanting full hookups can check out Waters Edge RV Resort back toward town, while those preferring developed state park amenities might consider Ridgeview Campground — Lake Cascade State Park.
Description
Horsethief Reservoir Campground (HRC) is owned by the State of Idaho, under the auspices of the Idaho Department of Fish and Game (IDFG). IDFG and the Treasure Valley Family YMCA (YMCA) formed a partnership whereby the YMCA manages the campsites at the HRC and the IDFG manages the facilities, reservoir, wildlife and all real property. The YMCA manages the campsites under the rules and regulations as specified by the IDFG and participates with the IDFG in determining best campground practices and campground operational issues. Campground Host(s) are jointly selected by the IDFG and YMCA, and managed by the YMCA on behalf of the IDFG.
Horsethief Reservoir is located approximately 75 miles north of Boise and 9 miles east of Cascade, Idaho. This 260-acre, IDFG-owned and operated reservoir is surrounded by pine forests and granite-capped mountains. These lands are relatively undeveloped, offering very scenic views with little noise or distractions. The reservoir is managed as a trout fishery and is owned by the State of Idaho, and all but the southern shoreline is accessible for walk-in fishing. Much of the east side of the reservoir (outside the 30 foot strip owned by the State of Idaho) is privately owned - please respect private property. There are also boat-launching facilities for small fishing boats on both the east and west sides of the reservoir. The entire shoreline of the reservoir is shared by a small summer home development and the Treasure Valley Family YMCA Camp.
The public campground area has a semi-primitive nature with no electrical hookups, pressurized water, or sewer hooks-ups for public use campsites. Cell coverage may vary depending on your wireless provider.
The nearby community of Cascade offers a wide variety of services: laundromat, groceries, restaurants, auto mechanics, barbers, and clothing shops.
Campers and Day Use Visitors must "pack out" all garbage. The campground does not provide trash collection points. Fire rings must be fully doused and any unburned wood removed from the campsite. Current "extreme fire conditions" pertain for the entire Campground property with the exception of the campsite fire rings.
RV Road Trip Guides
Location
Public CampgroundHorsethief Reservoir Campground is located in Idaho
Directions
From State Hwy 55 north of Cascade, turn east on the Warm Lake Highway. In 6 miles turn south on Horsethief Reservoir Rd and go 3 miles to the reservoir.
Coordinates
44.51199572 N
115.91936697 W
Connectivity
- T-MobileNo CoverageVerified by 1 userLast on 3/12/26
- VerizonLTESome CoverageVerified by 5 usersLast on 2/24/26
- AT&TLTESome CoverageVerified by 1 userLast on 3/12/26
Connectivity
- T-MobileNo CoverageVerified by 1 userLast on 3/12/26
- VerizonLTESome CoverageVerified by 5 usersLast on 2/24/26
- AT&TLTESome CoverageVerified by 1 userLast on 3/12/26
Access
- Drive-InPark next to your site
- Boat-InSites accessible by watercraft.
Site Types
- Tent Sites
- RV Sites
- Standard (Tent/RV)
- Group
Features
For Campers
- ADA Access
- Picnic Table
- Phone Service
- Toilets
- Alcohol
- Pets
- Fires
Drive Time
- 1 hr 41 min from Boise, ID
- 3 hrs 19 min from Lewiston, ID
- 3 hrs 24 min from Twin Falls, ID
- 5 hrs 6 min from Walla Walla, WA













